Move 'from' check to sendTransaction

packages/web3-wrapper/src/marshaller.ts

@@ -74,9 +74,6 @@ export const marshaller = {
         return tx;
     },
     marshalTxData(txData: Partial<TxData>): Partial<TxDataRPC> {
-        if (_.isUndefined(txData.from)) {
-            throw new Error(`txData is missing required "from" address.`);
-        }
         const callTxDataBase = {
             ...txData,
         };

packages/web3-wrapper/src/web3_wrapper.ts

@@ -483,6 +483,9 @@ export class Web3Wrapper {
      * @returns Transaction hash
      */
     public async sendTransactionAsync(txData: TxData): Promise<string> {
+        if (_.isUndefined(txData.from)) {
+            throw new Error(`txData is missing required "from" address.`);
+        }
         const txDataHex = marshaller.marshalTxData(txData);
         const txHash = await this._sendRawPayloadAsync<string>({ method: 'eth_sendTransaction', params: [txDataHex] });
         return txHash;